This case describes the problems encountered in testing a new concept for a forage blower design and the eventual successful completion of the project despite abandonment of the original concept. In Part A the need for the project, the company situation, and the new concept are described. Part B describes some analytical and experimental work which was done to aid forage blower designers. Part C reports the results of experiments and in Part D International Harvester's eventual production concept is described. An Instructor's note is also included.

This case study is part of the American Society for Engineering Education (ASEE) Engineering Case Library (ECL), which can be downloaded in full as a 300mb zip file. The Engineering Case Program originated at Stanford University in 1964 with the support of the National Science Foundation. It continues under the sponsorship of the ASEE.